Water heater for ranges



Oct. 3l, 1939.

Invenor-x Bergamin H. Salm son {fitter-megs.

Patented Oct. 31, 1939 UNITED STATES PATENT OFFICE WATER HEATER FORRANGES Benjamin H. Simpson, Minneapolis, Minn.V

Application March 7, 1938, Serial No. 194,420

4 Claims.

My invention relates to water heaters for ranges. An object of theinvention is to provide convenient and economical means for obtaininghot water from ranges which supply heat 5 produced from any suitablefuel such as coal, coke, oil and wood. In carrying out the principle ofmy invention, I provide a reservoir for water, a tubular coil structurein the smoke flue of the range, a tube connecting the lower portion ofthe reservoir with one end of the coil structure, and

a tube connecting the other end of the coil structure with the reservoirat a point above the iirst tube.

The novel features which I believe to be characterstic of my inventionare set forth with particularity inthe appended claims. The inventionitself, however, both as to its organization and method of operation,together with additional objects and advantages thereof, will be bestunderstood from the following description of a specific embodiment whenread in connection with the accompanying drawing in which,

Fig. l is a view in perspective and partly broken away showing the rearside of a range with my Water heater applied therein.

Fig. 2 is a fragmentary view in section on the line 2 2 of Fig. 1.

Fig. 3 is a top plan view of the coil structure and its connectingtubes.

Fig. i is a side elevational view of the coil structure and itsconnecting tubes.

Referring to the construction shown in the drawing which illustrates theprinciple of operation of my device, the numeral li! designates in 36general a range which is provided with a iire box i2, a smoke flue i4and a damper rod IE which may be operated whenever desired to check thedraft going through the smoke flue. A reservoir l for water is providedin the end of the range opposite the fire box. A coil structure isplaced in the smoke flue i4. In the form shown, the coil structure isvertical and compound consisting of two coils 20 and 22. It will beunderstood as a matter of course that any desired number of coils may beused. The lower end of the coil structure and the lower portion of thereservoir are connected by a tube 24. The upper end of the coilstructure is connected with the reservoir by a tube 26 at a point abovethe tube 24. The tube 26 preferably inclines upwardly toward thereservoir as shown. In order that the tube 26 may be connected with thereservoir at a point higher up than that shown, the smoke flue is shownprovided with a plug 23 and the reservoir with a .'55 plug 3U. Uponremoval of these plugs, the upper tube may be passed through theopenings thus provided. It is important to note that the smoke flue I4is extended through a smoke outlet box ma applied to one side of thestove or range; that the lower portion of the box 14a, is contracted or5 made narrow in respect to the width of the box, and that the flames orhot gases from the stove enter the bottom of the boX through an intakeport I4 that is extended nearly or quite the full width of the box andopens into the box im- 10 mediately below and longitudinally of thelower pipe 24. Also, it will be noted that the coils 20 and 22 thatconnect the pipes 24 and 26 are laterally spaced in a vertical planethat includes those portions of the pipes 24 and 2S that are 15 withinthe box. This arrangement positions the coils so that the flames or hotgases will be directed upwardly not only against the inner ends of thepipes 24 and 2t but against and around and between the several coils asthe gases move 20 upwardly in the contracted portion of the outlet box.The coil 22 is formed integral with and by the same pipe or tube thatforms the inner ends of the pipes 24 and 26, while the coil 20 isindependently formed and independently connected 25 to the pipes 24 and26.

The operation and advantages of my invention will be readily understoodin connection with the foregoing description and the accompanyingdrawing. Referring particularly to Fig. 1, it is 30 apparent that thewater in the coil structure is heated by waste heat in the smoke flueand passes through the tube 26 into the upper portion of the reservoir,while the cooler water in the lower portion of the reservoir flowsthrough the tube 24 35 into the coil structure to be heated thus causinga continuous circulation of the water. Placing the coil structure in thesmoke flue of the range provides a convenient and economical means forheating the water since heat which would other- 40 wise be wasted isutilized and effective heat is not taken from the range. Although I haveshown and described a specific embodiment of my invention, I am fullyaware that other embodiments are possible. My invention, therefore, 45is not to be restricted except insofar as is necessitated by the priorart and by the spirit of the following claims.

I claim:

l. In a water heater for heating apparatus 50 having a smoke ue, thecombination of a reservoir for water, a vertical tubular coil structurein said smoke flue, a tube connecting the lower portion of saidreservoir with the lower end of said coil structure, a tube connectingthe upper end of said coil structure with said reservoir at a positionabove said rst tube, and removable plugs at diierent levels in the wallsof said reser Voir and smoke ue whereby the place of attachment of theends of the upper tube may be varied for the purpose of heating thewater in said reservoir to the best advantage.

2. A stove structure of the kind described in- Volving a hot Water tankand provided at one side with a boX1ike smoke outlet having an intakeport at its lower portion, upper and lower pipes extended to and fromsaid hot water tank and into said smoke outlet box, said pipes beingsubstantially in the same vertical plane and the lower pipe beingextended above and longitudinally of said intake port, and a pluralityof coils connecting said upper and lower pipes and spaced laterally insaid smoke outlet box in the vertical plane including said upper andlower pipes.

3. A stove structure of the kind described involving a hot water tankand provided at one side with a box-like smoke outlet having an intakeport at its lower portion, upper and lower pipes extended to and fromsaid hot water tank and into said smoke outlet box, said pipes beingsubstantially in the same vertical plane and the lower pipe beingextended above and longitudinally of said intake port, and a pluralityof coils connecting said upper and lower pipes and spaced laterally insaid smoke outlet box in the vertical plane including said upper andlower pipes, one of the said coils being formed integral with and as acontinuation of the inner ends of the upper and lower pipes, and theother coil being independently formed and independently connected to thesaid upper and lower pipes.

fl. A stove structure of the kind described involving a hot water tankand provided at one side with a box-like smoke outlet having an intakeport at its lower portion, upper and lower pipes extended to and fromsaid hot water tank and into said smoke outlet box, said pipes beingsubstantially in the same vertical plane and the lower pipe beingextended in the vicinity of and longitudinally of said intake port, anda plurality of coils connecting said upper and lov/er pipes and spacedlaterally in said smoke outlet box in the vertical plane including saidupper and lower pipes.

BENJAMN H. SIMPSON.

